Jock itch is also called ringworm of the crotch (tinea cruris). A fungus causes the pink, scaly, itchy rash on the inner thighs, groin, and scrotum. Jock itch is much more common in boys than girls.
Buy Tinactin, Micatin, Lamisil AT, or Lotrimin cream (nonprescription) at your drugstore. Twice a day put the cream on the rash and at least 1 inch beyond the borders of the rash. Make sure you get the medicine in all the creases. Continue using the medicine for several weeks, or for at least 7 days after the rash seems to have gone away.
Jock itch will heal much more quickly if the groin area is kept dry. Your child should wear loosely fitting cotton shorts. Wash shorts and athletic supporters after each use. Wash the rash area once a day with plain water and dry it carefully. Do not use soap on the rash.
Scratching can spread the rash or even start a bacterial infection. Encourage your child not to scratch the area.
Jock itch is not spread to others very easily. The fungus won't grow on dry, normal skin. Your child may continue to take gym and play sports. Wash gym clothes after each use.